DELL 750W Redundant Server Power Supply PowerEdge R520 5NF18

Dell 750W Redundant Server PSU

This Dell 750W redundant power supply is built for the PowerEdge R520 server. It delivers 750W of output to keep the system running when one module fails. The unit suits administrators who need continuous uptime in a 2U rack chassis. Buyers who want a single non-redundant PSU or a different form factor should look elsewhere.

Thermals noise and power draw

The redundant design shares the load between modules, so each runs cooler than a single 750W unit would. Fan speed ramps with server thermal sensors, keeping noise proportional to actual load. The supply draws only the power the R520 components require, up to the 750W rating. No standalone acoustic or efficiency figures are provided by the manufacturer.

Build integration and freed resources

The module slides into the R520 hot-plug bay without cables, freeing internal space for drives or expansion cards. Redundancy removes the need for an external UPS to cover a single PSU failure. The 5.0000LBS weight is supported by the chassis rails, so no extra bracket is required. Builders using non-Dell racks must verify bay compatibility themselves.